- Silachai
- Address:tharatiboodee, punpin, suratthani, Thailand
- Polyplex Thailand Plc
- Address:Soi 19 Sukhumvit, Bangkok, Bangkok, Thailand
- Siam Wire Industry
- Address:33 / 1 Moo 9 Tumbol Klong prang
- World Wide Brush Co., Ltd.
- Address:Samut Sakhonsuanluang54 Moo 10 Liabklong-Prasicharoen Rd.
- CIT Trading Co., Ltd
- Address:Rachadak
- Usha Siam Steel Industries PLC
- Address:
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